Factores climáticos y su influencia en la expresión de enfermedades fúngicas en cultivares de Heliconias

One of the factors limiting the production of heliconias in Colombia is fungal disease, which is influenced by climatic conditions that determine the development of the disease cycle. In order to define a possible relationship between climatic factors and the incidence or severity of the most limiting fungal, we developed a linear correlation analysis of 10 heliconia cultivars in two municipalities, in the departments of Risaralda and Valle del Cauca. We found a direct relationship between the weekly average temperature and the incidence index of Colletotrichum spp., and the severity index of Helminthosporium spp.; areas with weekly average temperatures over 25°C will likely have incidence and severity of these limiting disease exceeding 50 % and 25 % respectively. Based on these results, we propose the development and validation of a predictive model of incidence and severity of limiting diseases, using a climate forecasting system.

• Autores: López-Vásquez, Juan Manuel; Marulanda Ángel, Marta Leonor; Universidad Tecnológica de Pereira; López Gutiérrez, Ana María; Universidad Tecnológica de Pereira
• Tipo de recurso: Article of journal
• Fecha de publicación: 2013
• Institución: Pontificia Universidad Javeriana
• Repositorio: Repositorio Universidad Javeriana
• Idioma: eng
• OAI Identifier: oai:repository.javeriana.edu.co:10554/31441
• Acceso en línea: http://revistas.javeriana.edu.co/index.php/scientarium/article/view/6113; http://hdl.handle.net/10554/31441
• Palabra clave: Phytopathology; Fungal diseases; Heliconia; Temperature; Incidence; Severity.; Fitopatología
• Rights: openAccess
• License: Atribución-NoComercial-SinDerivadas 4.0 Internacional